Hydraulic Cylinder Seal for Various Chemicals in Coal Mining

• Customization: Available
• Material: NBR
• Usage: Engine, Transmission, Rear Axle, Gearbox
• Type: Haplotype
• Speed: High Speed
• Pressure: Pressure Type
• Lip: Composite Lip
• Standard: Standard, Nonstandard
• Applicable Temperature: From Minus 60 Degrees to Plus 300 Degrees
• Scope of Application: Various Chemical Substances
• Custom Specifications: Customizability Can Reach up to 500 Centimeters.
• Transport Package: Packaging Bag, Cardboard Box
• Trademark: Anran
• Origin: China Hebei
• HS Code: 4016931000
• Production Capacity: 100000pieces/Year

Product Description

Product Description

Oil seals, also known as rotary shaft seals, are indispensable for protecting your machinery from unwanted contaminants like grease, liquids, or dirt. These seals play a pivotal role in any rotating and moving assembly, maintaining stability between stationary and moving components in mechanical devices. Typically, an oil seal comprises three essential elements:
A sealing material (rubber component), robust metal casings, and durable springs, making it a versatile and reliable sealing assembly.
Our diverse range of oil seals includes: TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among others, catering to a wide array of applications.
We provide an extensive selection of premium rubber materials for crafting oil seals, ensuring exceptional performance across various operating conditions. These high-performance materials withstand diverse chemicals and extreme temperatures, from scorching heat to freezing cold.
[Oil seal material introduction]

Ding Rubber (NBR)	Temperature resistance of 100ºC, good oil resistance, wear resistance, anti-aging, good sealing effect.
silica gel (VMQ)	Temperature resistance of 200ºC, general oil resistance, high temperature resistance, good waterproof, non-toxic.
Fluorogel (FKM)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure resistance, corrosion resistance.
ethylene-propylene-diene misch-polymere (EPDM)	Temperature resistance of 150ºC, general oil resistance, corrosion resistance.
(PTFE)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure and corrosion resistance.
polyurethane (PU)	Temperature resistance of 90ºC, good oil resistance, wear resistance.

Customizable, non-standard oil seals are available using materials such as fluorine rubber, silicone rubber, fine rubber, and propylene rubber, tailored to meet specific needs.

[Oil seal core structure type]

Single lip structure	Single channel sealing lip for low pressure reciprocating motion (e. g. automotive crankshaft oil seal)
Double lip structure	Two upper and lower sealing lips, a main seal (contact shaft), a secondary seal (dust), often used in high pressure environment
Composite lip structure	Main lip + dust lip + buffer spring (like type NOK TCV), can withstand both radial and axial forces
labyrinth packing	Multi-channel ring groove design to block oil by throttling effect (suitable for high-speed rotating axis)
Seal the oil swing ring	Metal ring rotating centrifugal oil swing with shaft (commonly used in gearbox gearbox)

[Key structural components of the oil seal]

Component name	Material selection	function declaration
seal(ing)lip	NBR/FKM/PTFE	Main seal surface, the contact shaft forms a dynamic seal
spring	Stainless steel / carbon steel	Provide lip pretension to compensate for wear
skeleton	PA6/PC	Fixed the sealing lip shape and transfer the mounting stress
Dust-proof lips	polyurethane elastomer	Blocking the entry of solid impurities (optional)
Self-lubricating coating	plumbago/PTFE	Reduce the friction coefficient and extend the life life

[Oil seal and sealing principle]
The oil seal operates by forming an oil film through precise contact between the lip and the shaft, achieving dynamic sealing by leveraging the combined effects of spring tension and material elasticity. As the shaft rotates, the lip contracts due to frictional heat, enhancing the seal's effectiveness; when stationary, it maintains contact to ensure a reliable seal.

[Oil seal application fields]
Our oil seals find extensive applications in engines, gearboxes, hydraulic pumps, reducers, and more, especially in challenging environments with high temperatures, rapid speeds, or corrosive media. PTFE oil seals, for instance, offer superior durability, lasting up to 20 times longer than traditional oil seals, effectively sealing water, acids, gases, and other media.

[Oil seal selection and installation]
When selecting and installing oil seals, consider rotational speed, temperature, pressure, and media characteristics of the shaft. Ensure vertical shaft installation to prevent tilting and apply grease to the lip to minimize dry friction.
Product Superiority:

1. Our products are crafted with meticulous material selection, showcasing high performance and stability, complemented by advanced automation.
2. With outstanding elasticity and wear resistance, our products remain steadfast even in the harshest environments.
3. Our dedicated team of technical experts provides customized solutions and timely support for our customers.
4. Adhering strictly to our quality control system, we have established ourselves as a trusted supplier to numerous prestigious enterprises globally.